Yellowing prevention of cellulose-based consumer products

Abstract

The present invention is a consumer product packaging system comprising at least one consumer product wrapped in an UV thermoplastic packaging film. At least one of the consumer products wrapped in the UV thermoplastic packaging film has a brightness wherein the brightness of the consumer product changes about 5 percent or less during an exposure to light for a period of about 12 months or more.

We claim:  
     
         1 . A consumer product packaging system comprising at least one consumer product wrapped in an UV thermoplastic packaging film, at least one of the consumer product wrapped in the UV thermoplastic packaging film having a brightness wherein the brightness of the consumer product changes about 5 percent or less during an exposure to light for a period of about 12 months or more.  
     
     
         2 . The consumer product packaging system of  claim 1 , wherein the consumer has a b-value that changes about 20 percent or less during an exposure to light for a period of about 12 months or more.  
     
     
         3 . The consumer product packaging system of  claim 1 , wherein the UV thermoplastic packaging film deflects and/or absorbs light having a wavelength between about 280 to about 435 nm.  
     
     
         4 . The consumer product packaging system of  claim 3 , wherein the UV thermoplastic packaging film deflects and/or absorbs about 90 percent or more of the light having wavelengths between about 280 to about 435 nm.  
     
     
         5 . The consumer product packaging system of  claim 1 , wherein the UV thermoplastic packaging film has a gauge of about 125 μm or less.  
     
     
         6 . The consumer product packaging system of  claim 1 , wherein the UV thermoplastic packaging film comprises polyester resins.  
     
     
         7 . The consumer product packaging system of  claim 1 , wherein the UV thermoplastic packaging film comprises at least one inorganic compound to provide light deflection and/or absorption.  
     
     
         8 . The consumer product packaging system of  claim 1 , wherein the UV thermoplastic packaging film comprises at least one organic compound to provide light deflection and/or absorption.  
     
     
         9 . The consumer product packaging system of  claim 1 , wherein the consumer product comprises BCTMP.  
     
     
         10 . A consumer product packaging system comprising at least one consumer product wrapped in an UV thermoplastic packaging film, the consumer product wrapped in the UV thermoplastic packaging film having a b-value wherein the b-value of the consumer product changes about 20 percent or less during an exposure to light for a period of about 12 months or more.  
     
     
         11 . The consumer product packaging system of  claim 10 , wherein the consumer has a brightness that changes about 5 percent or less during an exposure to light for a period of about 12 months or more.  
     
     
         12 . The consumer product packaging system of  claim 10 , wherein the UV thermoplastic packaging film deflects and/or absorbs light having a wavelength between about 280 to about 435 nm.  
     
     
         13 . The consumer product packaging system of  claim 12 , wherein the UV thermoplastic packaging film deflects and/or absorbs about 90 percent or more of the light having wavelengths between about 280 to about 435 nm.  
     
     
         14 . The consumer product packaging system of  claim 10 , wherein the UV thermoplastic packaging film has a gauge of about 125 μm or less.  
     
     
         15 . The consumer product packaging system of  claim 10 , wherein the UV thermoplastic packaging film comprises polyester resins.  
     
     
         16 . The consumer product packaging system of  claim 10 , wherein the UV thermoplastic packaging film comprises at least one inorganic compound to provide light deflection and/or absorption.  
     
     
         17 . The consumer product packaging system of  claim 10 , wherein the UV thermoplastic packaging film comprises at least one organic compound to provide light deflection and/or absorption.  
     
     
         18 . The consumer product packaging system of  claim 10 , wherein the consumer product comprises BCTMP.